Has anyone used these hoods with a Rodenstock 90mm 4.5 Grandagon (the newest one)? I'm naturally concerned about vignetting, and wanted to see if anyone had any experience with this kind of setup. I like the idea of the filter holder/hood all-in-one, but I'm unsure of how it will work with the wider lenses. Sounds like a nice idea in concept...

Anytime I have to use more than one filter, handholding gets to be a pain, and I'm very lazy about shading the lens.